ALARM 57, AMA internal fault
Try to restart the AMA. Repeated restarts can overheat the
motor.
ALARM 58, AMA Internal fault
Contact the Danfoss supplier.
WARNING 59, Current limit
The current is higher than the value in
parameter 4-18 Current Limit
. Ensure that the motor data in
parameters 1-20 to 1-25
is set correctly. Increase the current
limit if necessary. Ensure that the system can operate safely
at a higher limit.
WARNING 60, External interlock
A digital input signal is indicating a fault condition external
to the drive system. An external interlock has commanded
the drive system to trip. Clear the external fault condition.
To resume normal operation, apply 24 V DC to the terminal
programmed for external interlock. Reset the drive system.
WARNING/ALARM 61, Feedback error
An error between calculated speed and speed
measurement from feedback device.
Troubleshooting
•
Check the settings for warning/alarm/disabling in
parameter 4-30 Motor Feedback Loss Function
.
•
Set the tolerable error in
parameter 4-31 Motor
Feedback Speed Error
.
•
Set the tolerable feedback loss time in
parameter 4-32 Motor Feedback Loss Timeout
.
WARNING 62, Output frequency at maximum limit
The output frequency has reached the value set in
parameter 4-19 Max Output Frequency
. Check the
application for possible causes. Possibly increase the
output frequency limit. Be sure that the system can
operate safely at a higher output frequency. The warning
clears when the output drops below the maximum limit.
WARNING/ALARM 65, Control card over temperature
The cutout temperature of the control card is 85
°
C
(185
°
F).
Troubleshooting
•
Check that the ambient operating temperature is
within the limits.
•
Check for clogged filters.
•
Check the fan operation.
•
Check the control card.
WARNING 66, Heat sink temperature low
The drive system is too cold to operate. This warning is
based on the temperature sensor in the IGBT module.
Increase the ambient temperature of the unit. Also, a
trickle current (a small amount of current) can be supplied
to the drive system whenever the motor is stopped by
setting
parameter 2-00 DC Hold/Preheat Current
at 5% and
parameter 1-80 Function at Stop
.
ALARM 67, Option module configuration has changed
One or more options have either been added or removed
since the last power-down. Check that the configuration
change is intentional and reset the unit.
ALARM 68, Safe Stop activated
Safe Torque Off (STO) has been activated. To resume
normal operation, apply 24 V DC to terminal 37, then send
a reset signal (via bus, digital I/O, or by pressing [Reset]).
ALARM 69, Power card temperature
The temperature sensor on the power card is either too
hot or too cold.
Troubleshooting
•
Check that the ambient operating temperature is
within limits.
•
Check for clogged filters.
•
Check fan operation.
•
Check the power card.
ALARM 70, Illegal FC configuration
The control card and the power card are incompatible. To
check compatibility, contact a Danfoss supplier with the
type code of the drive system from its nameplate and the
part numbers of the cards.
ALARM 71, PTC 1 safe stop
STO has been activated from the VLT
®
PTC Thermistor Card
MCB 112 (motor too warm). Normal operation can be
resumed when the MCB 112 applies 24 V DC to terminal
37 again (when the motor temperature reaches an
acceptable level), and when the digital input from the MCB
112 is deactivated. When that happens, send a reset signal
(via bus or digital I/O, or press [Reset]).
ALARM 72, Dangerous failure
STO with trip lock. An unexpected combination of STO
commands has occurred:
•
VLT
®
PTC Thermistor Card MCB 112 enables
X44/10, but STO is not enabled.
•
MCB 112 is the only device using STO (specified
through selection
[4] PTC 1 alarm
or
[5] PTC 1
warning
in
parameter 5-19 Terminal 37 Safe Stop
),
STO is activated, and X44/10 is not activated.
WARNING 73, Safe Stop auto restart
STO activated. With automatic restart enabled, the motor
can start when the fault is cleared.
WARNING 76, Power unit setup
The required number of power units does not match the
detected number of active power units. This warning
occurs when replacing a drive module if the power-specific
data in the module power card does not match the rest of
the drive system. The warning is also triggered if the
power card connection is lost.
Maintenance, Diagnostics, a...
User Guide
MG37L202
Danfoss A/S © 08/2017 All rights reserved.
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